Spring hinge



June 16, 1931. i A. RUBIN 1 ,810,534

SPRING HINGE Filed Sept. 30 1929 A001. PH Eva/1v,

Patented June 16, 1931 UNITED STATES 7 SPRING HINGE Application filedSeptember 30,1929. Serial no. 396 318;

This invention relates to spring hinge suitable for refrigerator doors.

One object of this invention is to provide a hinge whose tension may bereadily ad- 5 juste Another object of this invention is to provide ahinge simple in construction, with as few parts as possible, economicalto manufacture, substantial, durable in use and easy of repair.

Other objects will be apparent from the detailed description taken inconnection with the accompanied drawings in which Fig. 1 is the planview of the hinge,

Fig. 2 is a cross section on line 22 Fig. 1;

Fig. 3 is a view of the hinge pin;

Fig. 4 is a view of the key pin. i

The butt 1 and leaf 2 have attaching flanges by means of which the hingemay be at- 2 tached to the door casing. The leaf has a sleeve 3 with oneend partially closed by an inwardly extending annular flange or ring 4..

The butt has the upstanding lugs 5 and 6. A

hinge pin securing the leaf to the butt by passing through the lugs andthe sleeve, has

a cylindrical head 7, a reduced shank provided with a shoulder 8. Theholes in the lug 6 and through the annular ring 4 are such as toaccommodate the shank of the hinge pin.

The hole in the lug 5 is of the same diameter as the sleeve andaccommodates the head 7 of the hinge pin. It will thus be seen that theleaf of this hinge is journaled by its sleeve at one end on the head ofthe pin and on the.

other end on the shank of the pin.

A torsion spring 9 is placed about the hinge pin and inside of thesleeve 3, having one end' secured by passing into an orifice 10 intheannular ring 4 and the other end into a longitudinal slot 11 in thehead of the hinge pin. The periphery of the head has a series'of radialholes 12 to register with a hole in the lug 5. The holes 5 in the headand the hole in the lug are such as to accommodate a cylindrical key pin13. (Fig. 4.) This pin has small shoulders 14 formed ateach end of thepin as shown in exaggerated form in Fig. 4. In a pin, for instance inchin diameter it is found that shoulders 1/64 inch in thickness is amplysufficient to retain the pin.

One of these shoulders abuts the inside of the lug and when the springis intension the key pin is firmly secured thereby; The key ispreferably provided with a shoulder on each end so that in assembling nocare need be taken to insert a particular end in the hole.

It is apparent, of course, from a mechanical standpoint that a shoulderon one end of the pin is sufficient.

A transverse slot 15 is provided across the head of the pin toaccommodate an adjusting tool such as a screw driver, whereby thetension of the spring may be readily adjusted by removing the key pin,turning the hinge pin and inserting the key pin in other of the 7 holesin the periphery of the head of'the hinge It will thus be seen that ahinge has been provided which is of few parts, simple of construction,lending itself to the ordinary methods of manufacture, substantial andeasy of adjustment and repair.

It is apparent that the form of the attach-' ing flanges are not oftheessence of this invention; While the terms butt and leaf have been usedfor convenience, thesefelements maybe of any desired form.

It is also apparent various changes may be made within the scope of theappended claims without departing from the spirit of this in-- vention'.

-Having described the invention what is claimed is: a o

1. A spring hinge comp-rising, a butt hav ing upstanding lugs, a leafhaving a sleeve positioned" between said lugs, a hinge pin through saidsleeve and said lugs secured to one of said lugs, a spring within saidsleeve and about said hinge pinhaving one end attached to said pin andthe other end attached to said sleeve; said hinge pin having acylindrical head'with a hole in the periphery of said head adapted toregister with a hole in one of said lugs radial to said hinge pin and toaccommodate a keyfpin, a longitudinal slot in the head adapted to secureone end of the t0 the sleeve by having its end inserted in an orifice inthe said ring.

2. A spring hinge comprising, a butt having upstanding lugs, a leafhaving a sleeve positioned between the said lugs, an annular ring at oneend of said sleeve and integral therewith, a hinge pin through saidsleeve and said lugs, a spring Within said sleeve and about said hingepin, and a cylindrical head on the pin, the hole in the lugs adj aeentt0 the annular ring, and the hole in the ring being adapted to fit theshank of the pin, and

the head of the pin being adapted to fit in the other lug and extendinto the sleeve,

whereby the leaf is j ournaled' on the shank and the head of the pin. 71

In testimony whereof I afix my signature this 12th day of September1929.

I ADOLPH RUBIN.

